# Cannot read some tags inside Rockwell AOI

**URL:** <https://forum.inductiveautomation.com/t/cannot-read-some-tags-inside-rockwell-aoi/38393>\
**Category:** Ignition Early Access\
**Created:** [September 4, 2020, 11:09am UTC](https://forum.inductiveautomation.com/t/cannot-read-some-tags-inside-rockwell-aoi/38393 "2020-09-04T11:09:49Z")\
**Posts on this page:** 1\
**Showing post:** 29

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [December 6, 2020, 1:06am UTC](https://forum.inductiveautomation.com/t/cannot-read-some-tags-inside-rockwell-aoi/38393/29 "2020-12-06T01:06:03Z")

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Btw, if you struggle with allocating tags to fast/slow scan classes because there’s just too many to go fast, you might want to consider my E/IP module. I/O buffers simply cannot be beat for [snappy](http://forum.inductiveautomation.com/t/snappy-user-interfaces-with-the-ethernet-ip-module/12617) data transfer.

It can do thousands of tags at 100ms updates or faster.

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